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DNA Structure and Replication

DNA Structure and Replication
DNA with a G-C content of 50% will melt at approximately

60°C
100 °C
70 °C
90 °C

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DNA Structure and Replication
If one cell has AT contents 40%, what will be the percentage of Guanine residue?

30%
15%
60%
Guanine residue can not be calculated

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DNA Structure and Replication
Which histone(s) are associated with the linker DNA of a nucleosome?

Histone H4
Histones H2A and H2B
Histone H3
Histone H1

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DNA Structure and Replication
When DNA polymerase is in contact with guanine in the parental strand, what does it add to the growing daughter strand?

Guanine
Cytosine
Phosphate
Uracil

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DNA Structure and Replication
Automated DNA sequencing uses the chain termination method

either (b) or (c)
but with a polynucleotide primer labeled with a fluorescent dye
with no primer
but with an oligonucleotide primer labeled with a fluorescent dye

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DNA Structure and Replication
During conventional transformation experiments E. coli cells and plasmid DNA interacts in an environment of

high temperature and Mg++
low temperature and Ca++
high temperature and Ca++
low temperature and Mg++

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